I wanted to keep my ISC so I used the "jb weld" method of blocking off the FIAV.
After getting the 5 screws out(I used an impact driver and still stripped two) pop the freeze plug out by hitting it a couple times.
5 screws and the freeze plug is marked in red
Put a flate plate over the side that sandwiches to the other half of the TB and hold it there while you fill the channel full of jb weld through the hole where the freeze plug was. It should look like this when you're done.
Hold or clamp the flat plate in place until the jb weld cures(tip: use jb-quick cure)and then put the freeze plug back if you want. I left it out. Then if you want you can clean the throttle body with a little carb cleaner and reinstall. Rock solid idle baby